Facebook Twitter

Weekly rainfall wrap + 14 day outlook, 27 Apr 2017

by James Nason, 27 April 2017

For today’s 14-day rainfall outlook – scroll to bottom of article

 

Rainfall was recorded in Western Australia, South Australia, Victoria, Tasmania, western and southern New South Wales, far eastern and northern Queensland, and in the northern Top End and southwest corner of the Northern Territory.

Past seven weeks: At the start of the week, a broad surface trough combined with an upper-level trough and moved slowly east, producing a cloudband extending from the Kimberly and interior of Western Australia, to southern parts of Northern Territory and South Australia. Thunderstorms and showers with moderate falls gradually extended from the Kimberley and interior of Western Australia, to the southwest of the Northern Territory and South Australia.

The surface and upper-level troughs, and associated cloudband moved across the southeast of Australia, with a weak low developing in western Victoria, producing moderate to heavy falls in central and southeastern South Australia, southern New South Wales, western and central Victoria, and northern Tasmania. Another surface trough near the south coast of Western Australia produced isolated heavy rainfall in the area.

During the middle of the week, a firm ridge extended over eastern Queensland, and a developing tropical low moved westwards through the Torres Strait into the Arafura Sea, enhancing shower and thunderstorm activity in parts of northern Australia. Heavy falls were reported about the far north of the Cape York Peninsula and in parts of Arnhem Land in the Northern Territory.

In the latter part of the week, a surface trough and a cold front tracked eastwards through southeast Australia generating widespread moderate rainfall totals across much of central and eastern South Australia, western New South Wales, large parts of Victoria and northern Tasmania. A cloudband in the northwest of Australia and a low near the Pilbara coast produced some moderate rainfall in the Pilbara and Gascoyne in Western Australia.

Rainfall totals exceeding 100 mm were recorded in the northwest agricultural and Flinders districts in South Australia, the tip of the Cape York Peninsula, and parts of the northeast tropical coast district in Queensland. The highest weekly rainfall total was 307 mm at Horn Island in far northern Queensland.

Rainfall totals between 50 mm and 100 mm were recorded in the northern Gascoyne, interior, and south coast of Western Australia; in Arnhem Land and parts of the southwest of the Northern Territory; and the agricultural districts, the Flinders, Mid North and southeastern districts of South Australia. Similar totals were recorded in northern, central and southwestern Victoria, southwestern New South Wales, northern Tasmania, Queensland’s north tropical coast and in the far north of the Cape York Peninsula.

Rainfall totals between 10 mm and 50 mm were recorded in the western Kimberley, Pilbara, Gascoyne, central interior and South West Land Division of Western Australia; in the northern Top End and southwest of the Northern Territory; much of South Australia except in the northeast, and Eyre Peninsulas; most of Victoria except East Gippsland, and northern Tasmania. Similar totals were recorded in western and southern New South Wales, patches of eastern New South Wales and in pockets of eastern Queensland.

Little or no rainfall was recorded in western, southeastern and northeastern Western Australia; most of the Northern Territory away from the far northern Top End and southwest corner; western and northeastern South Australia; East Gippsland in Victoria; southern Tasmania; the northeastern quarter of New South Wales; and Queensland, away from the far north and east coast.

 

Highest weekly totals

 

New South Wales and Australian Capital Territory

72 mm Wentworth (Burtundy)

64 mm Mathoura (Mathoura Station), Wentworth (Wamberra Station)

 

Victoria

115 mm Rushworth (Raglus)

114 mm Echuca Aerodrome

103 mm Woomelang

 

Queensland

307 mm Horn Island

144 mm Coconut Island

129 mm Tully Sugar Mill

 

Western Australia

164 mm Mettler

83 mm Spring Valley

79 mm Newman Aero

 

South Australia

120 mm Mount Eba

114 mm Booleroo Centre (Willowie)

103 mm Wilmington

 

Tasmania

60 mm Ulverstone (Knights Road)

59 mm Sprent

58 mm Wynyard Airport (Manual Rainfall)

 

Northern Territory

77 mm Walungurru Airport

66 mm Yirrkala Tropical Gardens

65 mm Milingimbi Airport

 

More weekly rainfall totals:

Source: BOM

 

 



Topics:

Related Stories

Reader's Comments


Comment

Leave a comment

(First Name and Surname Required) - read our Comment Policy

(Required)

(Required)